From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification for cost-saving modifications to the steering gear for the Second Wraith car.
| Identifier | ExFiles\Box 9\7\ 07-page028 | |
| Date | 8th February 1937 | |
| SECRET To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}5/AP.8.2.37. STEERING GEAR SPECIFICATION FOR SECOND WRAITH CAR. We wish to make a number of modifications to the Wraith Steering gear for the purpose of saving cost. We give below a list of these modifications and, for your information, our estimate of the savings to be obtained. Saving. (1) Outer steering column tube - chromium plate only sleeve at upper end. Remainder black stove enamelled. 15 - 0 (2) Outer column tube in 18 gauge material instead of 1 1/2 gauge as on Continental Phantom III. Length to suit Rm.{William Robotham - Chief Engineer}305 and Rm.{William Robotham - Chief Engineer}239. 1 - 0 (3) Adjusting sleeve in die cast RR.50 instead of forged steel to the attached Rm.{William Robotham - Chief Engineer}305. 2 - 0 (4) Lower column flange to Rm.{William Robotham - Chief Engineer}239 as Continental Phantom III. 0 - 6 (5) Covers FW.145/6 made in one piece to attached Rm.{William Robotham - Chief Engineer}306 in die cast RR.50. 1 - 6 (6) Control quadrant holder F.88356 in forged S/M instead of silver bronze. 2 - 6 (7) Control Quadrant F.89139 in die cast R.R.63 instead of forged silver bronze. 3 - 0 Will you please incorporate the above modifications on the steering gear for 25.G.V1. Where we have specified die castings, sand castings can be used for experimental purposes. This gear should also be fitted with a roller follower assembly made by Messrs Ransome & Marles which we will supply. For this purpose the gap between the rockshaft jaws must be increased by spotfacing as on the attached Rm.{William Robotham - Chief Engineer}307. The excess metal should be removed from the corners as also shewn on this print. continued | ||